<% cache(['markdown-guide', Digest::MD5.hexdigest(MARKDOWN_DOC)]) do %>
    <div class="panel markdown panel-default">
        <div class="panel-body">
            <h1>Markdown 教程</h1>
            <div class="row">
                <div class="col-md-6">
                    <pre><code><%= MARKDOWN_DOC %></code></pre>
                </div>
                <div class="col-md-6">
                    <%= markdown(MARKDOWN_DOC)%>
                </div>
            </div>
        </div>
    </div>
<% end %>